Nonslip textile finishing and the textile fabrics so produced



Patented Jan. 14, 1941 UNITED STATES PATENT QFFlCE NONSLIP TEXTILE FINISHING AND THE TEXTILE FABRICS SO PRODUCED William W. Trowell, Wilmington, Del, assignor to Hercules Powder Company, Wilmingto Del., a corporation of Delaware Application January 19, 1938, Serial No. 185,699

No Drawing.

11 Claims.

This invention relates to nonslip textile finish-- with a plastic, transparent covering of a watersoluble resin, which is then rendered insoluble on the fabric by heat-curing at a temperature of 15 at least 230 F. The resin disclosed is a ureaformaldehyde or a phenol-formaldehyde type.

Disadvantages of such a finish are that a relatively high temperature of treatment is required and that, with such a finishing method an increased tendency of the finished fabric to water-spot is produced.

My invention allows nonslip finished fabrics, which show a much reduced tendency to waterspot, to be produced without any necessity of using a resin or heat-curing a resin.

In practicing the method in accordance with my invention a textile fabric, for example arayon fabric, is treated with a solution of a water-insoluble metal salt of a sulfonated terpene-phenol condensate, preferably with addition of a plasticizing agent or the water-insoluble metal salt of a sulfonated terpene-phenol condensate may be produced in situ on the threads of the fabric. The water-insoluble metal salt of a sulfonated terpene-phenol condensate may be prepared in accordance with the process disclosed in my copending application Serial No. 185,698, filed Jan. 19, 1938 now U. S. Patent 2,155,961, which process comprises condensing a phenol, either monohydrie or polyhydric, with a terpene compound, for example, pinene, dipentene, pine oil, turpentine, terpineol, borneol, fenchyl alcohol, etc., sulfonating the condensate so produced to form a sulfonate thereof, and reacting said sulfonate with a water-soluble, metal salt, such as a water-soluble salt of aluminum, zinc, magnesium, calcium, iron, cobalt, nickel, etc.

The water-insoluble metal salts of sulfonated terpene-phenol condensates are insoluble in water, but soluble in various organic solvents,

such as ethyl alcohol, xylol, toluol, etc. In the applicationof the said water-insoluble metal salts to fabrics in accordance with my invention I may apply such metal salts in the form of a solution in a solvent therefor, or in the form of an aqueous emulsion of an organic solution thereof.

To illustrate the process and product in accordance with this invention, the following ex- 6 amples are given:

' Example I Three parts by weight of the aluminum salt of sulfonated pinene-phenol condensate, 8'? parts by weight of 2B (denatured) ethyl alcohol and 10 parts by weight of tricresyl phosphate were mixed to form a homogeneous solution. A swatch of rayon satin fabric was immersed in the above solution at room temperature for 5 seconds, removed therefrom, passed between squeeze rolls, and air dried at 50 C. The material could be slipped or distorted only with great dimculty and possessed superior non-slip characteristics.

Example II One part by weight of the nickel salt of a sulfonated terpene-phenol condensate, 98 parts by weight of 2B ethyl alcohol and one part by weight of dibutyl phthalate were mixed together to form a homogeneous solution. A swatch of rayon satin was immersed therein, removed, passed through squeeze rolls, and air dried at 50 C. A superior, nonslip finish was obtained on the fabric.

Example III 30 A swatch of rayon fabric was immersed in a solution of 6 parts by weight of aluminum acetate and parts by weight of water acidified with 0.5% acetic acid. Then 6 parts by weight of sulfonated pinene-cresol condensate-dissolved in 80 parts by weight of water containing 6 parts by weight of a castor oil-tri-ethanolamine reaction product was added to the aluminum acetate solution and the fabric, precipitating on the fabric the aluminum salt of the sulfonated pinenecresol condensate. The rayon fabric was removed from the liquid, washed with water at 60 C. for 10 minutes, and dried at C. for 15 minutes. A superior nonslip finish was obtained.

Example IV Thirty parts by weight of ethyl cellulose, 6 parts by weight of the cobalt salt of sulfonated pinene-cresol condensate, 3 parts by weight of castor oil-tri-ethanolamine reaction product, 81 parts by weight of xylol, 60 parts by weight of pine oil and 20 parts by weight of butanol were mixed to form a homogeneous solution. Then 200 parts by'weight of the above solution were 65 emulsified with parts by weight of water containing 0.25% potassium oleate and 1% sulfonated oil by passing the whole through a colloid mill. Then 1 part by volume of such emulsion was diluted with 2 parts by volume of water, and a swatch of natural silk satin immersed therein for 5 seconds, removed, squeezed between rolls, and ironed until dry at 215 F. The cloth could be distorted only by the use of prolonged stress and great force on the warp and filling threads.

What I claim and desire to protect by Letters Patent is:

1. Method of producing a nonslip textile fabric which includes impregnating fabric with a waterinsoluble metal salt of a sulfonated terpenephenol condensate.

2. Methodof producing a nonslip textile fabric which includes imprenating fabric with a solution of a water-insoluble metal salt of a sulfonated terpene-phenol condensate.

3. Method of producing a nonslip textile fabric which includes impregnating a fabric with an aqueous suspension of a solution of a water-insoluble metal salt of a sulfonated terpene-phenol condensate. i

4. Method of producing a nonslip textile fabric which includes precipitating on a fabric a waterinsoluble metal salt of a sulfonated terpenephenol condensate.

5. A nonslip fabric the individual threads or fibres of which contain a water-insoluble metal salt of a sulfonated terpene-phenol condensate in amount sufiicient to give the fabric nonslip characteristics.

6. A nonslip fabric the individual threads or fibres of which contain an aluminum salt of a sulfonated terpene-phenol condensate in amount suflicient to give the fabric nonslip characteristics.

7. A nonslip fabric the individual threads or fibres of which contain a nickel salt of a sulfonated terpene-phenoi.condensate in amount suff'lcient to give the fabric nonslip characteristics.

8. A nonslip fabric the individual threads or fibres of which contain a cobalt salt of a sulfonated terpene-phenol condensate in amount sufficient to give the fabric nonslip characteristics.

9. A nonslip fabric the individual threads or fibres of which contain a cobalt salt of a sulfonated terpene-cresol condensate, a castor oil-triethanolamine reaction product. and ethyl cellulose said ingredients being in amount and so proportioned to give the fabric nonslip characteristics.

10. A nonslip fabric the individual threads or fibres of which contain a water-insoluble metal salt of a sulfonated terpene-phenol condensate and a plasticizer for said condensate, the ingredients being in amount and so proportioned to give the fabric nonslip characteristics.

11.'A nonslip fabric the individual threads or fibres of which contain an aluminum salt of sulfonated pinene-cresol condensate in amount sufficient to give the fabric nonslip characteristics.

WILLIAM W. TROWELL. 

